Penile and clitoral erection first occurs in the ______ phase of the sexual response.

Freud's initial professional training was in the area of

a. psychoanalysis. b. pathology. c. physiology. d. neurology. e. psychology.

Seven-month-old Ramila was placed on the deep side of a visual cliff apparatus. You would be most likely to find that her heart rate __________, a sign of __________

a. decelerated; interest c. decelerated; fear b. accelerated; interest d. accelerated; fear